organic compounds in mineral flotation

organic compounds in mineral flotation

Use of organic polymers in the flotation of polymetallic ...

1999-4-1 · Abstract. Organic polymers are used in flotation for a wide range of oxides, silicates and industrial minerals as dispersants, depressants and as flocculants. Most of the investigations with polymers were conducted in this area and theories were advanced to explain the mode of adsorption on non-metallic mineral surfaces.

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Structure-Activity (Flotation) Relationship Modeling of ...

2012-11-29 · mineral flotation. Hence, flotation efficiencies of congeneric organic compounds used as mineral collectors are amenable to QSAR modeling. Sphalerite grade of the floats of a set of flotation tests conducted with a copper-zinc ore using a series of twenty seven N-arylhydroxamic acids of the generic structure Ar-N(OH)C(=0)-R (R= arylialkyliaaralkyl)

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Collector compositions for the froth flotation of mineral ...

A collector composition useful for the recovery of metal values from metal ores in a froth flotation process comprises two collectors. One collector is an organic compound containing at least 4 carbon atoms and one or more monosulfide units, wherein the carbon atoms to which the sulfur atoms are bound are aliphatic or cycloaliphatic carbons.

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Molecular Modeling as an Approach for Flotation

2020-4-1 · flotation from Sb-Hg,Sb-As ores at Djijicrut deposit (Tadjikistan) and Sarilah Mineral Processing Plant (Yakutia, Russia) . These collectors have been established as standard reagents for estimation the effectiveness of organic compounds studied. 4. Methods. 4.1 Computational Methods. In the present study computational modeling of minerals and

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(PDF) A Review of the Flotation of Copper Minerals

2022-2-8 · The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance.

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Oxidizing method in froth flotation of minerals ...

An improved method in concentration of oxide ores and minerals by froth flotation process which comprises subjecting a pulp of mineral slurry to the combined action of a organic nitrogen compound with one or more NH 2 group and hypochlorite in a slightly acid pulp of mineral slurry. The decomposition of the NH 2 group provokes a highly oxidizing state in the mineral slurry, a

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Frothers - an overview | ScienceDirect Topics

A. Gupta, D.S. Yan, in Mineral Processing Design and Operation, 2006 16.1.2 Frothers. Frothers are surfactants, usually organic heteropolar compounds such as alcohols or polyglycol ethers. Due to the heteropolar nature, the frother adsorbs at the air/water interface and as a result, lowers the water surface tension.

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CHAPTER-9 FROTH FLOTATION AND ITS APPLICATION

2020-5-6 · In flotation concentration, the mineral is usually transferred to the froth leaving the gangue in the pulp or tailing. This is direct flotation as opposed to reverse flotation, in ... sulfides and organic polymeric compounds. Collectors The collector is the most important reagent used in the iron ore flotation process. The

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Froth flotation pretreatment for enhancing

2008-4-28 · the organic sulfur compounds. Table 1 Effect of aqueous caustic leaching on removal of sulfur and ash after froth flotation treatment for Hazro coal Hazro coal constituents Raw % Froth flotation % Aqueous caustic leaching, % Pyritic sulfur 5.23 1.08 0.00 Organic sulfur 2.21 2.21 0.90 Total sulfur 7.44 3.29 0.90

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Collector compositions for the froth flotation of mineral ...

A collector composition useful for the recovery of metal values from metal ores in a froth flotation process comprises two collectors. One collector is an organic compound containing at least 4 carbon atoms and one or more monosulfide units, wherein the carbon atoms to which the sulfur atoms are bound are aliphatic or cycloaliphatic carbons.

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Performance of Different Classes of Organic Compounds

2016-11-23 · Flotation studies were carried out on a high ash coking coal sample using different classes of organic compounds as frothers. The organic compounds used as frothers in the present study were the following: (a) Frothers from natural sources (cyclic alcohol/phenols), (b) Synthetic frothers: Aliphatic alcohols, Polyglycols, Alkoxy alkane and Cyclic ethers. The time

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Biomodification of Mineral Surfaces and Flotation

2003-3-3 · PRODUCTS ON MINERAL FLOTATION A. Biomodification of Sulfide Mineral Surfaces Solojenken (20,21) reported for the first time the use of microorganisms of the type SRB, microbe fat, and biomass in the flotation of several sulfide and nonsulfide minerals. The SRB was found to depress the flotation of

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FROTH FLOTATION : RECENT TRENDS Flotation of

2011-12-1 · FROTH FLOTATION : RECENT TRENDS @IIME, JAMSHEDPUR, 1998; pp. 18-41 Flotation of Sulphide Ores - HZL Experience V.P. KOHAD Hindustan Zinc Ltd., Zawar Mines, Udaipur - 313 901 ABSTRACT Flotation process, patented in the year 1906, was originally developed for mineral industry to recover values from high grade tailings of gravity separation

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(PDF) A Review of the Flotation of Copper Minerals

2022-2-8 · The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance.

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Improvement of the froth flotation of LiAlO2 and melilite ...

2021-10-14 · General functionalization. LiAlO 2 or Melilite s.s., 10 w% of organic compound and toluene were refluxed under N 2 in a Dean–Stark apparatus for 16 h or stirred at room temperature for 16 h ...

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University of Louisville ThinkIR: The University of ...

2020-10-13 · soluble organic flotation agents containing trivalent nitrogen, or divalent sulfur (18). In 1924, Keller patented the use of less than one percent of a soluble organiC compound, particular­ ly the xanthates, as a mineral flotation agent (19). A simi-lar patent was issued to Lewis the following year (20). In 1925

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CHAPTER-9 FROTH FLOTATION AND ITS APPLICATION

2020-5-6 · In flotation concentration, the mineral is usually transferred to the froth leaving the gangue in the pulp or tailing. This is direct flotation as opposed to reverse flotation, in ... sulfides and organic polymeric compounds. Collectors The collector is the most important reagent used in the iron ore flotation process. The

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Flotation Separation of Marmatite from Pyrrhotite by

2008-8-21 · Abstract: Mercapto organic compound DMPS was used as the depressant for separation of copper activated marmatite from pyrrhotite in the presence of butyl xanthate. The flotation tests of single mineral show that DMPS has strong depressing effect on

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(PDF) Role of Surfactants in Mineral Processing: An Overview

4,200. Chapter. Role of Surfactants in Mineral. Processing: An Overview. Abhyarthana Pattanaik and Rayasam Venugopal. Abstract. Depletion of high-grade resources has necessitated the use of low ...

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Collector compositions for the froth flotation of mineral ...

A collector composition useful for the recovery of metal values from metal ores in a froth flotation process comprises two collectors. One collector is an organic compound containing at least 4 carbon atoms and one or more monosulfide units, wherein the carbon atoms to which the sulfur atoms are bound are aliphatic or cycloaliphatic carbons.

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Primary biodegradation of sulfide mineral flotation ...

This method was established according to ISO 7827-1984 BWater quality -Evaluation in an aqueous medium of the aerobic biodegradability of organic compounds^ (Shaohua et al. 2011) and has been ...

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Froth Flotation Applications - Mineral Processing &

2016-11-22 · The coal and its adsorbed organic compounds are recovered as a heavy froth product from mechanically agitated flotation cells. The froth is filtered on a rotary filter and then dried and used as fuel. In this very unusual

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An Exploratory Investigation of Polar Organic Compounds

2010-9-11 · Surface water samples were collected in 2006 from a lead mine–mill complex in Missouri to investigate possible organic compounds coming from the milling process. Water samples contained relatively high concentrations of dissolved organic carbon (DOC; greater than 20 mg/l) for surface waters but were colorless, implying a lack of naturally occurring aquatic

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(PDF) A Review of the Flotation of Copper Minerals

2022-2-8 · The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance.

Read More

FROTH FLOTATION : RECENT TRENDS Flotation of

2011-12-1 · FROTH FLOTATION : RECENT TRENDS @IIME, JAMSHEDPUR, 1998; pp. 18-41 Flotation of Sulphide Ores - HZL Experience V.P. KOHAD Hindustan Zinc Ltd., Zawar Mines, Udaipur - 313 901 ABSTRACT Flotation process, patented in the year 1906, was originally developed for mineral industry to recover values from high grade tailings of gravity separation

Read More

Improvement of the froth flotation of LiAlO2 and melilite ...

2021-10-14 · General functionalization. LiAlO 2 or Melilite s.s., 10 w% of organic compound and toluene were refluxed under N 2 in a Dean–Stark apparatus for 16 h or stirred at room temperature for 16 h ...

Read More

Flotation Separation of Marmatite from Pyrrhotite by

2008-8-21 · Abstract: Mercapto organic compound DMPS was used as the depressant for separation of copper activated marmatite from pyrrhotite in the presence of butyl xanthate. The flotation tests of single mineral show that DMPS has strong depressing effect on

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Pyrogallic acid: A novel depressant for bismuthinite in Mo ...

Although these organic compounds display strong affinity and good selectivity toward the target minerals in the flotation process (Zhang et al., 2020b),

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矿物加工工程选矿类05 flotation.pdf-原创力文档

2021-1-31 · 矿物加工工程选矿类05 flotation.pdf,FLOTATION A SUPPLEMRNT TO MINERAL PROCESSING TECHNOLOGY OCT. 2003 FLOTATION Frank F. Aplan Mineral Processing Section The Pennsylvnia State University University Park, PA 16802 Froth

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